I want to improve my mail delivery

[Craigerove]

Hello,

When I tested In MXtoolbox, my VPS SMTP then it shows some issues -

SMTP TLS
Warning - Does not support TLS.

SMTP Banner Check
Reverse DNS does not match SMTP Banner

SMTP Transaction Time
15.598 seconds - Not good! on Transaction Time

And when I check the MX of my hostname then it shows these errors -

DMARC Record Published
No DMARC Record found

DMARC Policy Not Enabled.

Please, anyone, tell me how can I solve these issues, and does these effects on mail delivery?

 

[princetrox]

In most cases, The first of these is a false positive. Here is the MXToolbox SMTP Failures (false positives) tutorial by Cpanel.

Spoiler: Tutorial - MXToolbox SMTP Failures (false positives)

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As for DMARC, you'd need to enable and configure the DMARC policy in the Zone Editor interface - if you're not sure how to do this you can read the information here:

Spoiler: DMARC Guide

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Hope this help

 

[PureVoltage]

You will want to make sure that you have all records setup correctly when sending email or it will be blocked as spam from a lot of places.
No one wants spam emails so it's starting to get harder to spam lately which is nice.

 

[mywebhosting]

Hello,

When I tested In MXtoolbox, my VPS SMTP then it shows some issues -






And when I check the MX of my hostname then it shows these errors -


Please, anyone, tell me how can I solve these issues, and does these effects on mail delivery?

Hello,

When I tested In MXtoolbox, my VPS SMTP then it shows some issues -






And when I check the MX of my hostname then it shows these errors -


Please, anyone, tell me how can I solve these issues, and does these effects on mail delivery?

You need to have SPF, DKIM, DMARC and rDNS records for smooth running of mails.